extension relation counts:
 count |          name           |      base_cv_name       
-------+-------------------------+-------------------------
     5 | dependent_on            | biological_process
   187 | happens_during          | biological_process
   285 | has_input               | biological_process
   281 | has_regulation_target   | biological_process
     5 | independent_of          | biological_process
     1 | not_happens_during      | biological_process
    28 | occurs_at               | biological_process
    13 | occurs_in               | biological_process
    85 | coincident_with         | cellular_component
     5 | dependent_on            | cellular_component
   992 | exists_during           | cellular_component
    19 | independent_of          | cellular_component
    16 | not_exists_during       | cellular_component
     4 | part_of                 | cellular_component
    81 | assayed_enzyme          | fission_yeast_phenotype
    65 | assayed_substrate       | fission_yeast_phenotype
  7753 | assayed_using           | fission_yeast_phenotype
  4899 | has_expressivity        | fission_yeast_phenotype
  6535 | has_penetrance          | fission_yeast_phenotype
    28 | is_bearer_of            | fission_yeast_phenotype
     1 | occurs_at               | fission_yeast_phenotype
    23 | occurs_in               | fission_yeast_phenotype
 36228 | during                  | gene_ex
     4 | in_absence_of           | gene_ex
   641 | in_presence_of          | gene_ex
    29 | occurs_in               | gene_ex
    65 | activated_by            | molecular_function
     2 | dependent_on            | molecular_function
   144 | happens_during          | molecular_function
   435 | has_direct_input        | molecular_function
   167 | has_regulation_target   | molecular_function
    20 | independent_of          | molecular_function
    63 | inhibited_by            | molecular_function
     3 | not_happens_during      | molecular_function
   126 | occurs_at               | molecular_function
     9 | occurs_in               | molecular_function
    16 | part_of                 | molecular_function
    25 | absent_during           | PSI-MOD
   161 | added_by                | PSI-MOD
   151 | added_during            | PSI-MOD
     8 | coincident_with         | PSI-MOD
     4 | has_direct_input        | PSI-MOD
     3 | in_presence_of          | PSI-MOD
   334 | level_fluctuates_during | PSI-MOD
  6790 | present_during          | PSI-MOD
    25 | removed_by              | PSI-MOD
    24 | removed_during          | PSI-MOD
     1 | required_for            | PSI-MOD
(48 rows)


number of annotations using extensions by cv:
 count |      base_cv_name       
-------+-------------------------
   722 | biological_process
   889 | molecular_function
  1058 | cellular_component
  7445 | PSI-MOD
 17393 | fission_yeast_phenotype
 36845 | gene_ex
(6 rows)